Composite biological denitrification wastewater treatment device

Abstract

The invention relates to a composite biological denitrification wastewater treatment device, and belongs to the technical field of wastewater treatment. The wastewater treatment device comprises a vertically arranged reactor body, wherein a three-phase separator is arranged in the reactor body and divides the reactor body into an upper layer and a lower layer, the upper layer is a biological membrane area, the lower layer is a granular sludge area, the lower end of the reactor body is a water inlet end, and the upper end of the reactor body is a water outlet end; a water inlet component, wherein the output end of the water inlet component is connected and communicated with the water inlet end of the reactor body; a heating part, wherein the output end of the heating part is connected with the reactor body, and the heating part is used for heating the reactor body; and an aeration part, wherein the output end of the aeration part is communicated with the biological membrane area. The wastewater treatment device adopts biological nitrogen removal, has efficient nitrogen removal capacity, has high efficiency and strong impact load resistance, and synchronously improves the treatment effect and stability.

Description

technical field [0001] The invention belongs to the technical field of wastewater treatment, and in particular relates to a compound biological denitrification wastewater treatment device. Background technique [0002] With the diversification of social industries and the rapid development of population size, the discharge of high-ammonia nitrogen and low-carbon wastewater such as food production and processing wastewater, livestock breeding wastewater, and landfill leachate is increasing day by day, gradually forming a special type with a large scale and difficult degradation Wastewater poses a serious threat to environmental water bodies. [0003] At present, there are relatively few treatment processes for this type of wastewater in the market, so activated sludge method, oxidation ditch, A / O and A 2 / O process and other traditional processes, but this process has some disadvantages in the treatment of high-concentration ammonia-nitrogen wastewater. During the reaction p...

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Problems solved by technology

[0003] At present, there are relatively few treatment processes for this type of wastewater in the market, so activated sludge method, oxidation ditch, A / O and A 2 / O process and other traditional processes, but this process has some disadvantages in the treatment of high-concentration ammonia-nitrogen wastewater. During the reaction process, carbon sources need to be added to promote the reaction, and at the same time, a large amount of energy and a large amount of O are required to be consumed. 2 , and the denitrification efficiency is low

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